课本,不仅是数学知识和数学思想方法的载体,同时又是数学课堂教学的依据,理应成为各级各类考试命题的“源头”.通过对历年高考数学试题的研究发现,每年均有一定量的试题是以课本例、习题为素材的变式题,通过变形、延伸与拓展来命制高考数学试题.为此,在高三数学复习的后期,在学生头脑中已经具备了基础知识与基本技能的前提下,引导学生在最后的时间内正确使用课本显得尤为重要.那么,我们 Textbooks are not only the carriers of mathematics knowledge and mathematical thinking methods, but also the basis of mathematics classroom teaching, which should become the “source” of all kinds of examination propositions at all levels. Quantitative test questions, textbooks, exercises as a variant of the material, through the deformation, extension and expansion to the entrance exam math.To this end, in the latter part of the senior high school mathematics review, in the minds of the students already have the basic knowledge and basic Skills under the premise of guiding students to use the textbook correctly in the final time is particularly important then we